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Page 3
D
D
O
O
M
M
o
o
d
d
b
b
u
u
s
s
A
A
d
d
d
d
r
r
e
e
s
s
s
s
e
e
s
s
The nDO parameters in the following Modbus Address Tables are as follows:
Model Name
Universal
DIO
Number of DO channels
(nDO)
Number of DI channels(nDI)
ET-2242U
-
16
0
(0xxxx) DO Address:
Starting
Address
Points
Description
Bits Per
Point
Range
Access
Type
0
(0x00)
1 ~ nDO
Digital Output Channels
1
0 = Off
1 = On
R/W
60
(0x3C)
1
Saves specific data to Flash
(The access type for some registers is
labeled with an “
E”
)
1
1 = Clear
W
100
(0x64)
1 ~ nDO
Enables the PWM for all DO Channels
1
0 = Off
1 = On
(Default= 0)
R/W
235
(0xEB)
1 ~ nDO
Sets the Power-on value for all DO
Channels
1
0 = Off
1 = On
(Default= 0)
R/W/F
267
(0x10B)
1 ~ nDO
Sets the Safe value for all DO Channels
1
0 = Off
1 = On
(Default= 0)
R/W/F
“
R
”: Read, “
W
”: Write, “
F
”: Settings are recorded in flash by default, “
E
”: After writing DO[60] register, the
data will be stored in flash.
For detailed information related to DO Modbus Addresses, refer to Section 6.3 "Modbus
Register Table" in the ET-2200 User Manual, which can be found at:
CD:\NAPDOS\ET2200\document\
http://ftp.icpdas.com/pub/cd/6000cd/napdos/et2200/document/
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